The Venomous Abyss

Adds spawn in four quadrants. Look around for the coffins that light up.

Enable the NSRT radar in "Encounter Alerts" and stay 38 yards away from the opposite side.

You can time grabbing droplets between ticks of the debuff, and you should help with add damage.

Preposition for the second set of totems.

The common Mythic strat is for everyone to not use the winds. Your ability to disjoint the wind is Wild Charge.

Bear the initial knock-up, then bear charge the boss.

Tempest

Take Remove Corruption for the Tempest debuff. Preferably you dodge the tornadoes.

Incapacitating Roar is used here to break orbs. Typhoon doesn't work.

You can Wild Charge and Flap for distance to get over the gaps in the middle corners.

Tiger Dash is taken here for orb movement. Accompanied by an Evoker's Time Spiral you can cover a lot of orb timings.

Remove Corruption can be taken here to dispel the random poison put on your raid.

Cooldowns

Cooldown timings are pretty fluid. Use your cooldowns where your guild is struggling; having cooldowns for all the shields in P3 isn't a bad thing.

Remove Corruption can be taken here to dispel poison from your tank while your healers are doing eggs.

Tiger Dash isn't bad here with how tough some of the wave line-ups are.